| /******************************************************************************* |
| * Copyright (c) 2009, 2014 EclipseSource and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * EclipseSource - initial API and implementation |
| ******************************************************************************/ |
| |
| rwt.qx.Class.define( "rwt.widgets.MenuBar", { |
| extend : rwt.widgets.base.HorizontalBoxLayout, |
| |
| construct : function() { |
| this.base( arguments ); |
| this._hoverItem = null; |
| this._openItem = null; |
| this._active = false; |
| this._mnemonics = false; |
| this.addState( "rwt_FLAT" ); // Workaround for Bug 414950 |
| this.setAppearance( "toolbar" ); |
| this.addEventListener( "mousedown", this._onMouseDown ); |
| this.addEventListener( "mouseup", this._onMouseUp ); |
| this.addEventListener( "mouseover", this._onMouseOver ); |
| this.addEventListener( "mouseout", this._onMouseOut ); |
| this.addEventListener( "keydown", this._onKeyDown ); |
| this.addEventListener( "keypress", this._onKeyPress ); |
| }, |
| |
| destruct : function() { |
| this._hoverItem = null; |
| this._openItem = null; |
| this._active = false; |
| this._mnemonics = false; |
| rwt.widgets.util.MenuManager.getInstance().remove( this ); |
| this.setActive( false ); |
| }, |
| |
| members : { |
| |
| setActive : function( active ) { |
| if( this.isDisposed() ) { |
| return; |
| } |
| if( this._active != active ) { |
| this._active = active; |
| if( active ) { |
| this._activate(); |
| } else { |
| this._deactivate(); |
| } |
| } |
| }, |
| |
| getActive : function() { |
| return this._active; |
| }, |
| |
| setMnemonics : function( value ) { |
| if( this.isDisposed() ) { |
| return; |
| } |
| if( this._mnemonics !== value ) { |
| this._mnemonics = value; |
| var items = this.getChildren(); |
| for( var i = 0; i < items.length; i++ ) { |
| if( items[ i ].renderText ) { |
| items[ i ].renderText(); |
| } |
| } |
| } |
| }, |
| |
| getMnemonics : function() { |
| return this._mnemonics; |
| }, |
| |
| addMenuItemAt : function( menuItem, index ) { |
| // separator does not have this function: |
| if( menuItem.setParentMenu ) { |
| // it is essential that this happens before the menuItem is added |
| menuItem.setParentMenu( this ); |
| } |
| this.addAt( menuItem, index ); |
| }, |
| |
| setHoverItem : function( item ) { |
| var newHover = item ? item : this._openItem; |
| if( this._hoverItem != null && this._hoverItem != item ) { |
| this._hoverItem.removeState( "over" ); |
| } |
| if( newHover != null ) { |
| newHover.addState( "over" ); |
| if( this._openItem != null && this._openItem != newHover ) { |
| this.setOpenItem( newHover ); |
| } |
| } |
| this._hoverItem = newHover; |
| }, |
| |
| openByMnemonic : function( item ) { |
| this.setOpenItem( item, true ); |
| this.setHoverItem( null, true ); |
| }, |
| |
| setOpenItem : function( item, byMnemonic ) { |
| var oldItem = this._openItem; |
| if( oldItem != null && oldItem.getMenu() != null ) { |
| oldItem.setSubMenuOpen( false ); |
| oldItem.getMenu().hide(); |
| } |
| if( item != null && item != oldItem && item.getMenu() != null && item.getEnabled() ) { |
| this._openItem = item; |
| this.setActive( true ); |
| item.addState( "pressed" ); |
| var subMenu = item.getMenu(); |
| item.setSubMenuOpen( true ); |
| subMenu.setOpener( item ); |
| var itemNode = item.getElement(); |
| // the position is relative to the document, therefore we need helper |
| subMenu.setTop( rwt.html.Location.getTop( itemNode ) + itemNode.offsetHeight ); |
| subMenu.setLeft( rwt.html.Location.getLeft( itemNode ) ); |
| subMenu.setMnemonics( byMnemonic === true ); |
| subMenu.show(); |
| } else { |
| this._openItem = null; |
| } |
| this.dispatchSimpleEvent( "changeOpenItem" ); |
| }, |
| |
| getOpenItem : function() { |
| return this._openItem; |
| }, |
| |
| getOpener : rwt.util.Functions.returnNull, |
| |
| // from original Menu, needed for the menu-manager: |
| isSubElement : function( vElement, vButtonsOnly ) { |
| var result = false; |
| if ( ( vElement.getParent() === this ) |
| || ( ( !vButtonsOnly ) && ( vElement === this ) ) ) { |
| result = true; |
| } |
| if( !result ) { |
| var a = this.getChildren(), l=a.length; |
| for ( var i = 0; i < l; i++ ) { |
| if ( this.hasSubmenu( a[ i ] ) |
| && a[ i ].getMenu().isSubElement( vElement, vButtonsOnly ) ) |
| { |
| result = true; |
| } |
| } |
| } |
| return result; |
| }, |
| |
| hasSubmenu : function( item ) { |
| return item && item.getMenu && item.getMenu(); |
| }, |
| |
| //Overwritten, called by MenuManager |
| hide : function() { |
| this.setActive( false ); |
| }, |
| |
| getAutoHide : rwt.util.Functions.returnTrue, |
| |
| // Overwritten to prevent this from being ever focused |
| getFocusRoot : function() { |
| return null; |
| }, |
| |
| _activate : function() { |
| rwt.widgets.util.MenuManager.getInstance().add( this ); |
| if( this._openItem == null ) { |
| this.setHoverItem( this.getFirstChild() ); |
| } |
| this.setCapture( true ); |
| }, |
| |
| _deactivate : function() { |
| rwt.widgets.util.MenuManager.getInstance().remove( this ); |
| this.setMnemonics( false ); |
| this.setOpenItem( null ); |
| this.setHoverItem( null ); |
| this.setCapture( false ); |
| }, |
| |
| _onKeyDown :function( event ) { |
| if( this._mnemonics ) { |
| var keyCode = event.getKeyCode(); |
| var isChar = !isNaN( keyCode ) |
| && rwt.event.EventHandlerUtil.isAlphaNumericKeyCode( keyCode ); |
| if( isChar ) { |
| var event = { |
| "type" : "trigger", |
| "charCode" : keyCode, |
| "success" : false |
| }; |
| var items = this.getChildren(); |
| for( var i = 0; i < items.length; i++ ) { |
| if( items[ i ].handleMnemonic ) { |
| items[ i ].handleMnemonic( event ); |
| } |
| } |
| } |
| } |
| }, |
| |
| _onKeyPress : function( event ) { |
| switch( event.getKeyIdentifier() ) { |
| case "Up": |
| this._handleKeyUp( event ); |
| break; |
| case "Down": |
| this._handleKeyDown( event ); |
| break; |
| case "Left": |
| this._handleKeyLeft( event ); |
| break; |
| case "Right": |
| this._handleKeyRight( event ); |
| break; |
| } |
| }, |
| |
| _handleKeyDown : function( event ) { |
| if( this.hasSubmenu( this._hoverItem ) ) { |
| this.setOpenItem( this._hoverItem ); |
| this._openItem.getMenu().hoverFirstItem(); |
| event.preventDefault(); |
| event.stopPropagation(); |
| } |
| }, |
| |
| _handleKeyUp : function( event ) { |
| if( this.hasSubmenu( this._hoverItem ) ) { |
| this.setOpenItem( this._hoverItem ); |
| this._openItem.getMenu().hoverFirstItem( true ); |
| event.preventDefault(); |
| event.stopPropagation(); |
| } |
| }, |
| |
| _handleKeyRight : function() { |
| if( this._hoverItem ) { |
| var next = this._hoverItem.getNextSibling(); |
| if( next ) { |
| this.setHoverItem( next ); |
| } |
| } |
| }, |
| |
| _handleKeyLeft : function() { |
| if( this._hoverItem ) { |
| var next = this._hoverItem.getPreviousSibling(); |
| if( next ) { |
| this.setHoverItem( next ); |
| } |
| } |
| }, |
| |
| _onMouseOver : function( event ) { |
| var target = event.getOriginalTarget(); |
| if( this.contains( target ) ) { |
| var hoverItem = target == this ? null : target; |
| this.setHoverItem( hoverItem ); |
| } else { |
| // This is a capture widget, re-dispatch on original |
| target._dispatchEvent( event ); |
| event.stopPropagation(); |
| } |
| }, |
| |
| _onMouseOut : function( event ) { |
| var target = event.getOriginalTarget(); |
| if( this.contains( target ) ) { |
| var related = event.getRelatedTarget(); |
| if( target == this || !this.contains( related ) ) { |
| this.setHoverItem( null ); |
| } |
| } else { |
| // This is a capture widget, re-dispatch on original |
| target._dispatchEvent( event ); |
| event.stopPropagation(); |
| } |
| }, |
| |
| _onMouseDown : function( event ) { |
| var target = event.getOriginalTarget(); |
| if( this.contains( target ) ) { |
| if( target != this ) { |
| this.setOpenItem( target ); |
| } |
| } else { |
| // This is a capture widget, re-dispatch on original |
| target._dispatchEvent( event ); |
| event.stopPropagation(); |
| } |
| }, |
| |
| _onMouseUp : function( event ) { |
| var target = event.getOriginalTarget(); |
| if( this.contains( target ) ) { |
| if( target instanceof rwt.widgets.MenuItem ) { |
| target.execute(); |
| } |
| } else { |
| // This is a capture widget, re-dispatch on original |
| target._dispatchEvent( event ); |
| event.stopPropagation(); |
| } |
| } |
| |
| } |
| |
| }); |
| |
